Dump-car.



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APPLICATION FILED PEB. 8, 1904.

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' Illinois,

UNirrED STATES- PATENT OFFICE.

SPENCER OTIS. OF CHICAGO, ILLINOIS, ASSIGNOR TO NATIONAL COAL `DUMP CAR COMPANY, OF RAPID CITY, SOUTH DAKOTA, lA CORPO# RATION OF SOUTH DAKOTA.

DUMP-clin.

Patented March 6, 1906.

Application liled February 8, 1904. Serial No. 192,634.

To all whom it may concern: Beit known that I, SPENCER Oris, a citi'- zen of the United States,

have invented certain new and useful 'Im rovements in Dump-Cars, of which the fol owing is a specification.

v This invention relates' to that .class of .dump-cars which are provided with dropbottom portions formed of a plurality of swinging doors, and particular-l to the construction andl arrangement of the means by which the doors are hel and permitted to open, all of which will be more fully hereinafter set fort The principal object of the invention is to provide a drop-bottom dump-car with simple, economical, and efiicient mechanism for o enin t creo l l s Further objects of the invention will appear from an examination of the drawings and the following description and claims.

The invention consists principall in a dumpscar in which there are combine a plurality of dumping-doors, which form the drop-.bottom thereof and extending longitudinally of the car, a rock-shaft, and compound lever mechanism pivotally secured to the rock-shaft and to the frame of the car for opening and closing said dum ing-doors.

The invention consists, furt er and finally, in the features, combinations, and details of construction hereinafter described and claimed. v

In the accompanying drawings', Figure 1 is a cross-sectional view of a portion of a car v with my vibratable lever mechanism as it appears When constructed in accordance with these im roveinents and showing the parts in closed) position; Fig. 2, a similar view showing the parts in open position, and Fig. 3

' a cross-sectional detail taken en lin'e 3 of Fig. .2.

In illustrating and describing lthese im;

-grovemets 'I h'ave only illustrated and will erel describe that which I consider to be new,

taken in connection with so much as is old as will p'ro rly disclose the invention to others and ena le those skilled in the art to practice the saine, leaving out of consideration other andlwell-known elements,'which if setforth herein would' onlyV tend to confusion, -prolixty, and ambiguity.

residing at Chicago,

d in closed position vand closing the swinging doers` tions movabl plates h, whic i are secured to the framework In constructing a dump-car inaccordance with these improvements I take a car of any ofthe. usual constructions having av frame ortion provided with longitudinal sills a and i; and cross-sills c. This car may be provided 'with the usual side-board mechanisms or not,

as circumstances may require or necessit demand. To form a drop-bottom for this car, a plurality of swinging sections d is provided and pivotally secured at their inner:

edges, as at c, to the supporting-.framework of the car at each side of the longitudinal center f thereof, so that said swinging sections ma be'dro ed down to the position shown l?. PP

in ig. 2 to orm discharging-apronsb which the material within the car maybe umped toeither or both sides of the track. It be# comes important to provide. some simple,

economical, and eliicient mechanism for closing thesev swinging sections, holding them in their closed' positions, and at 'the same time .permitting them to dro to their o en positions. To accomplish t s, a plura 'ty of vibratable or pivoted door-su porting mechanisms g are provided two" ereach swinging section-.having their pivot porinounted in slotted pivotof the car between the side of the car and the longitudinal center of' the doors, in engagement with the doors between their longitud-i-y nal centers and outer swinging ed es in both opened and closed positions an movable transverselyr of the doors, so as to su port the doors and the weight of the load tliereon at or' outside of the longitudinal center. The weight of the load thus rests upon these su porting. mechanisms and the hinges of t e doors, and substantially alll upward strain on the hinges or pivotal points of the doorsis prevented. vTo operate .these vibratable or pivoted door-supporting mechanisms, rockshaft mechanisme' is provided having Aarms or levers j clamped thereto, while connectingthe vibratable lever and to the arms on the rock-shafts.

From the foregoing it will be seen that as -rods 7c are provided and pivotally secured to roo the rock-shaft is vibrated thel vibratablelef ver mechanisms are also vibrated lor swung forward, so that the projections Z at their' lower ends will Contact the inclined planes m on the lower surface of the door, and thus do a plurality of fixed latches and secured to .the framewori of the car,

such latches forming inwardly-projecting ll..- sha ed portions upon which the center q of sai vibratable lever rides and which pre` vents all downward movement of saidjfvijbratable'leversi- The angular slot r in-sa'id pivot-plates h is provided for the purpose of permitting the fulcrum or pivotal point of l i' saidty-ibratable; levers to have an independent movement which permits of the locking and unlocking of said vibratable levers for this purpose only, 'as it will be seen that` the doors are fully closed before said pivot be ins to move and cannot' be opened until sai vpivot has stopped all of its lateral movement. In order to hold said vibratable levers against lateral dis lacement, 'a rod or rod mechanismv t is provi ed and secured to tne projections on the lower ends of said vibratable levers,-

thereby compelling them to act in pairs when it is so desired and preventin them fromV having any independent latera or twisting movements upon their pivots, all of which will'be understood and appreciated bythose skilled in the art. l 'i I claim- 1. In a the combinationrof ya supporting-name; portion, adrop-b'ottom therefor composed of a plurality of swinging Asectionsv pivotally s ecured at their inner ends to the frai'ne'of the carat each side of the longitudinal center, vibratablel door-sup orting mechanism pro-l vided with a movabl) y ltact the lower, surface. of said swinging sections and close and hold them locked in closed position, means for 4vibrating said door,n supportingtmechanism, and a fixed latchonholding said door-supporting mechanism in locked position, substantially as de' scribed.

2. In a dump-car oftheclass described,

a drop-bottom therefor' composed of a pludump-car of the class described,

'anisms pivotally secured in slotted p ates on l e pivot by which it is se# cured to the frame ofthe car adapted to con` 'if i Witnesses: Y the combmation of a supporting-namework,

rality of swinging sections pivotally secured at their inner edges to the framework of ythe car at each side of the longitudinal center, a plurality of v ibratable door-supporting mechanisms mounted on movable pivots in the framework of the car for closing and supporting -said swinging sections, rod mechanism securing a plurality of said vibratable mechanisms together so as to hold them against lateral displacement, a rock-shaft, and a connecting-rod pivotall'y secured to said rockshaft and said vibratable door-supporting mechanisms, substantially as described.

3. In a dump-car of the class described, the combination of a supportingfframework, a drop-bottom 'therefor composed of a plurality of swinging sections ivotally secured at their inner edges to the iiamework of the. car at each side 'of the longitudinal center', a plurality olE vibratable door-supporting mech- 'anisms pivotally secured in slotted plates on the framework of the car-for operating said swinging sections, rod mechanism. for securing a pluralit of said vibtatable mechanisms together an holding them against laterall displacement, a rock-shaft, and a connectin rod pivotally secured to said vibratab e mechanisms and rock-shaft, substantially as described.

4. In a dump-.car of the class described,

the combination of a supporting-framework,

a drop-bottom therefor composed of a plulrality of swinging sections ivotally secured at their inner edges to the amework of the car at each side of the longitudinal center, a plurality of vibratable door-supportin mech'- the' framework of the car' for/closing and opening said swinging sections, rod mechan ism for securing Ia plurality ofsaid vibratable mechanisms together 'and holding' them against lateral displacement, a rock-shaft, a

connecting-rod pivpt'ally secured to saidvi'- bratable mechanisms ,andv rock-shaft, and a pluralit of fixed latches secured to the frame-v work o thecar for holding said vibratablemechanisms in theirfclosed position, substan roo tially as descriljged,v li sP'nNeER ons.

- ANN'inC. COURTENAY,

ANNA. L; SAVOIE. 

